Timing of Apixaban Initiation After Hysterectomy

General Principles for Apixaban Initiation After Surgery

Apixaban should be started 24-72 hours after hysterectomy, once adequate surgical hemostasis has been established, with the exact timing depending on bleeding risk assessment and whether neuraxial anesthesia was used 1
For procedures with high bleeding risk, apixaban should be restarted with caution based on surgical bleeding risk assessment 1
Full therapeutic anticoagulation should typically be resumed 24-72 hours postoperatively, only after confirming surgical hemostasis 1
For twice-daily regimens, resume apixaban the next day, not the same day as surgery 1

If neuraxial anesthesia was used, wait at least 4 hours after catheter removal before starting apixaban, and do not start apixaban earlier than 12 hours after the neuraxial block was performed 2
For therapeutic doses, wait at least 24 hours after the block was performed 2
If significant intraoperative bleeding complications occurred, consider delaying apixaban initiation and potentially using unfractionated heparin initially due to its shorter half-life and reversibility 2

For patients requiring therapeutic anticoagulation, resume the patient's regular therapeutic dose once hemostasis is established 1
For patients with epidural catheters for pain control, therapeutic anticoagulation must be delayed until after catheter removal 1
Monitor renal function postoperatively as surgical procedures may affect kidney function and potentially alter apixaban clearance 1

Initiating apixaban too early after surgery, especially in patients who received neuraxial anesthesia, which increases the risk of spinal hematoma 2, 1
Failing to adjust timing based on renal function, as impaired kidney function can lead to drug accumulation 1
Overlapping anticoagulants when transitioning between agents, which can increase bleeding risk 3